The K.C. Chiefs will no longer allow their fans at Arrowhead Stadium to wear headdresses or paint their faces in Native American style ... announcing a permanent ban on both things Thursday.
The team says it's all a part of an effort to be more sensitive toward Native American cultures ... with Chiefs officials adding there might be even more changes coming.
K.C. says it's also reviewing the "Arrowhead Chop" -- a stadium-wide chant where fans pretend they have tomahawks while screaming at the top of their lungs.
The Chiefs also say they might be doing away with their famous drum-pounding pregame ceremony too.